- Author:
- Halbertsma,H.L.;Staplin,F.L.
- Year:
- 1960
- Title:
- The Mississippian-Pennsylvanian boundary from the Peace River area to the Williston Basin.
- Reference:
- Halbertsma,H.L. et al. (1960) The Mississippian-Pennsylvanian boundary from the Peace River area to the Williston Basin. Journal of the Alberta Society Petroleum Geology Vol. 8 # 12 P. 363- 373
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Grandispora | Grandispora sp | North Dakota | Late Visean | |
| Costaspora | Costaspora | North Dakota | Late Visean | |
| Retispora | Retispora | North Dakota | Late Visean | |
| Tendosporites | Tendosporites | North Dakota | Late Visean | |
| Veliferaspora | Veliferaspora | North Dakota | Late Visean |